A back office is the platform of a charge point operator (CPO) that manages your charger over OCPP, for example for billing, reimbursement or remote management. The back office is chosen during commissioning. A charger without a back office runs standalone, and you manage it yourself in the web interface.
See the current back office
Open the web interface and look at the back office settings in the commissioning or OCPP section. You see which back office is configured and whether the charger is connected to it.
Change the back office
Changing the back office is done by recommissioning the charger: in the web interface go to System, click Recommission, enter the device password and walk through the commissioning steps again. In the back office step you choose the new back office. Your new CPO needs the charge point ID of your charger to accept it on their platform, so agree the switch with them first.
Is your back office not in the list? Then follow My desired back office is not in the dropdown menu. The current list of supported back offices is on the integrations page.
Switch to standalone
If you no longer want a back office, choose the unmanaged option during recommissioning. The charger then runs without a CPO. Add your RFID tags in the web interface, or enable charging without authorisation, so you can keep charging.